From patchwork Tue May 26 13:25:56 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 6481341 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B5EACC0020 for ; Tue, 26 May 2015 13:36:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C446D203F3 for ; Tue, 26 May 2015 13:36:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7683202F0 for ; Tue, 26 May 2015 13:36:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932253AbbEZNgW (ORCPT ); Tue, 26 May 2015 09:36:22 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:50976 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754420AbbEZN0l (ORCPT ); Tue, 26 May 2015 09:26:41 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id t4QDQHbM001223; Tue, 26 May 2015 08:26:17 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4QDQHac030239; Tue, 26 May 2015 08:26:17 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.224.2; Tue, 26 May 2015 08:26:17 -0500 Received: from dflp33.itg.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4QDQ9bL027427; Tue, 26 May 2015 08:26:13 -0500 From: Peter Ujfalusi To: , CC: , , , , , , , , , , , Grant Likely , Rob Herring Subject: [PATCH 01/13] dmaengine: of_dma: Correct return code for of_dma_request_slave_channel in case !CONFIG_OF Date: Tue, 26 May 2015 16:25:56 +0300 Message-ID: <1432646768-12532-2-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.3.5 In-Reply-To: <1432646768-12532-1-git-send-email-peter.ujfalusi@ti.com> References: <1432646768-12532-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP of_dma_request_slave_channel should return either pointer for valid dma_chan or ERR_PTR() error code, NULL is not expected to be returned. Signed-off-by: Peter Ujfalusi CC: Grant Likely CC: Rob Herring --- include/linux/of_dma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h index 98ba7525929e..0fd80be152c4 100644 --- a/include/linux/of_dma.h +++ b/include/linux/of_dma.h @@ -80,7 +80,7 @@ static inline int of_dma_router_register(struct device_node *np, static inline struct dma_chan *of_dma_request_slave_channel(struct device_node *np, const char *name) { - return NULL; + return ERR_PTR(-ENODEV); } static inline struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,